This summary omits context for what the “grueling travel schedule” is, similar results for REM sleep and cognitive function, player reactions and countermeasure

This summary omits context for what the “grueling travel schedule” is, similar results for REM sleep and cognitive function, player reactions and countermeasures, and interpretations by sleep science experts (Czeisler and Walker). I’m not sure how a few sentences about testosterone is an adequate recap.